S.C. Code Ann. § 1-11-280
The Board shall develop a system of agency-managed and interagency motor pools which are, to the maximum extent possible, cost beneficial to the State. All motor pools shall operate according to regulations promulgated by the Budget and Control Board. Vehicles shall be placed in motor pools rather than being individually assigned except as specifically authorized by the Board in accordance with criteria established by the Board. The motor pool operated by the Division of General Services shall be transferred to the Division of Motor Vehicle Management. Agencies utilizing motor pool vehicles shall utilize trip log forms approved by the Board for each trip, specifying beginning and ending mileage and the job function performed.
The provisions of this section shall not apply to school buses and service vehicles.